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Huang S, Shen Z, An R, Jia Q, Wang D, Wei S, Mu J, Zhang Y. Identification and characterization of the plasma membrane H +-ATPase genes in Brassica napus and functional analysis of BnHA9 in salt tolerance. Plant Physiol Biochem 2024; 210:108566. [PMID: 38554537 DOI: 10.1016/j.plaphy.2024.108566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/05/2024] [Accepted: 03/25/2024] [Indexed: 04/01/2024]
Abstract
As a primary proton pump, plasma membrane (PM) H+-ATPase plays critical roles in regulating plant growth, development, and stress responses. PM H+-ATPases have been well characterized in many plant species. However, no comprehensive study of PM H+-ATPase genes has been performed in Brassica napus (rapeseed). In this study, we identified 32 PM H+-ATPase genes (BnHAs) in the rapeseed genome, and they were distributed on 16 chromosomes. Phylogenetical and gene duplication analyses showed that the BnHA genes were classified into five subfamilies, and the segmental duplication mainly contributed to the expansion of the rapeseed PM H+-ATPase gene family. The conserved domain and subcellular analyses indicated that BnHAs encoded canonical PM H+-ATPase proteins with 14 highly conserved domains and localized on PM. Cis-acting regulatory element and expression pattern analyses indicated that the expression of BnHAs possessed tissue developmental stage specificity. The 25 upstream open reading frames with the canonical initiation codon ATG were predicted in the 5' untranslated regions of 11 BnHA genes and could be used as potential target sites for improving rapeseed traits. Protein interaction analysis showed that BnBRI1.c associated with BnHA2 and BnHA17, indicating that the conserved activity regulation mechanism of BnHAs may be present in rapeseed. BnHA9 overexpression in Arabidopsis enhanced the salt tolerance of the transgenic plants. Thus, our results lay a foundation for further research exploring the biological functions of PM H+-ATPases in rapeseed.
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Affiliation(s)
- Shuhua Huang
- Hybrid Rapeseed Research Center of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Zhen Shen
- College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Ran An
- Hybrid Rapeseed Research Center of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Qingli Jia
- Hybrid Rapeseed Research Center of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Daojie Wang
- Key Laboratory of Plant Stress Biology, State Key Laboratory of Cotton Biology, School of Life Sciences, Henan University, Kaifeng, 475004, China
| | - Shihao Wei
- Hybrid Rapeseed Research Center of Shaanxi Province, Yangling, 712100, Shaanxi, China
| | - Jianxin Mu
- Hybrid Rapeseed Research Center of Shaanxi Province, Yangling, 712100, Shaanxi, China.
| | - Yanfeng Zhang
- Hybrid Rapeseed Research Center of Shaanxi Province, Yangling, 712100, Shaanxi, China.
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Muñiz García MN, Baroli I, Cortelezzi JI, Zubillaga M, Capiati DA. Genetic manipulation of protein phosphatase 2A affects multiple agronomic traits and physiological parameters in potato ( Solanum tuberosum). Funct Plant Biol 2023; 50:1117-1129. [PMID: 37899005 DOI: 10.1071/fp23163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/14/2023] [Indexed: 10/31/2023]
Abstract
In this study, agronomic and functional characteristics of potato (Solanum tuberosum ) plants constitutively overexpressing the protein phosphatase 2A (PP2A) catalytic subunit StPP2Ac2b (StPP2Ac2b-OE) were evaluated. StPP2Ac2b-OE plants display reduced vegetative growth, tuber yield and tuber weight under well-watered and drought conditions. Leaves of StPP2Ac2b-OE plants show an increased rate of water loss, associated with an impaired ability to close stomata in response to abscisic acid. StPP2Ac2b-OE lines exhibit larger stomatal size and reduced stomatal density. These altered stomatal characteristics might be responsible for the impaired stomatal closure and the elevated transpiration rates, ultimately leading to increased sensitivity to water-deficit stress and greater yield loss under drought conditions. Overexpression of StPP2Ac2b accelerates senescence in response to water-deficit stress, which could also contribute to the increased sensitivity to drought. Actively photosynthesising leaves of StPP2Ac2b-OE plants exhibit elevated levels of carbohydrates and a down-regulation of the sucrose transporter StSWEET11 , suggesting a reduced sucrose export from leaves to developing tubers. This effect, combined with the hindered vegetative development, may contribute to the reduced tuber weight and yield in StPP2Ac2b-OE plants. These findings offer novel insights into the physiological functions of PP2A in potato plants and provide valuable information for enhancing potato productivity by modulating the expression of StPP2Ac2b .
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Affiliation(s)
- María N Muñiz García
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular 'Dr. Héctor N. Torres' (INGEBI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Vuelta de Obligado 2490, Buenos Aires, Argentina
| | - Irene Baroli
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biología Experimental and Instituto de Biodiversidad y Biología Experimental Aplicada (IBBEA), Universidad de Buenos Aires and Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Int. Güiraldes y Cantilo, Buenos Aires, Argentina
| | - Juan I Cortelezzi
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular 'Dr. Héctor N. Torres' (INGEBI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Vuelta de Obligado 2490, Buenos Aires, Argentina
| | - Martina Zubillaga
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular 'Dr. Héctor N. Torres' (INGEBI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Vuelta de Obligado 2490, Buenos Aires, Argentina
| | - Daniela A Capiati
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular 'Dr. Héctor N. Torres' (INGEBI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Vuelta de Obligado 2490, Buenos Aires, Argentina
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3
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Jia B, Cui H, Zhang D, Hu B, Li Y, Shen Y, Cai X, Sun X, Sun M. The conserved evolution of plant H +-ATPase family and the involvement of soybean H +-ATPases in sodium bicarbonate stress responses. Plant Physiol Biochem 2023; 204:108133. [PMID: 37883915 DOI: 10.1016/j.plaphy.2023.108133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/11/2023] [Accepted: 10/21/2023] [Indexed: 10/28/2023]
Abstract
Plant plasma membrane (PM) H+-ATPases are essential pumps involved in multiple physiological processes. They play a significant role in regulating pH homeostasis and membrane potential by generating the electrochemical gradient of the proton across the plasma membrane. However, information on soybean PM H+-ATPase is still limited. In this study, we conducted the evolutionary analysis of PM H+-ATPases in land plants and investigated the subfamily classification and whole genome duplication of PM H+-ATPases in angiosperms. We further characterized the extremely high conservation of the soybean PM H+-ATPase family in terms of gene structure, domain architecture, and protein sequence identity. Using the yeast system, we confirmed the highly conserved biochemical characteristics (14-3-3 binding affinity and pump activity) of soybean PM H+-ATPases and their conserved function in enhancing tolerance to high pH and NaHCO3 stresses. Meanwhile, our results also revealed their divergence in the transcriptional expression in different tissues and under sodium bicarbonate stress. Finally, the function of soybean PM H+-ATPases in conferring sodium bicarbonate tolerance was validated using transgenic Arabidopsis. Together, these results conclude that the soybean PM H+-ATPase is evolutionarily conserved and positively regulates the response to sodium bicarbonate stress.
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Affiliation(s)
- Bowei Jia
- Crop Stress Molecular Biology Laboratory, College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, China; Key Laboratory of Germplasm Enhancement, Physiology, and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, 150030, China
| | - Hongli Cui
- Crop Stress Molecular Biology Laboratory, College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Dajian Zhang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, China
| | - Bingshuang Hu
- Crop Stress Molecular Biology Laboratory, College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Yuan Li
- Crop Stress Molecular Biology Laboratory, College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Yang Shen
- Crop Stress Molecular Biology Laboratory, College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Xiaoxi Cai
- Crop Stress Molecular Biology Laboratory, College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Xiaoli Sun
- Crop Stress Molecular Biology Laboratory, College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, China.
| | - Mingzhe Sun
- Crop Stress Molecular Biology Laboratory, College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing, 163319, China.
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Muñiz García MN, Cortelezzi JI, Capiati DA. The protein phosphatase 2A catalytic subunit StPP2Ac2b is involved in the control of potato tuber sprouting and source-sink balance in tubers and sprouts. J Exp Bot 2022; 73:6784-6799. [PMID: 35925650 DOI: 10.1093/jxb/erac326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
Sprouting negatively affects the quality of stored potato tubers. Understanding the molecular mechanisms that control this process is important for the development of potato varieties with desired sprouting characteristics. Serine/threonine protein phosphatase type 2A (PP2A) has been implicated in several developmental programs and stress responses in plants. PP2A comprises a catalytic (PP2Ac), a scaffolding (A), and a regulatory (B) subunit. In cultivated potato, six PP2Ac isoforms were identified, named StPP2Ac1, 2a, 2b, 3, 4, and 5. In this study we evaluated the sprouting behavior of potato tubers overexpressing the catalytic subunit 2b (StPP2Ac2b-OE). The onset of sprouting and initial sprout elongation is significantly delayed in StPP2Ac2b-OE tubers; however, sprout growth is accelerated during the late stages of development, due to a high degree of branching. StPP2Ac2b-OE tubers also exhibit a pronounced loss of apical dominance. These developmental characteristics are accompanied by changes in carbohydrate metabolism and response to gibberellic acid, and a differential balance between abscisic acid, gibberellic acid, cytokinins, and auxin. Overexpression of StPP2Ac2b alters the source-sink balance, increasing the source capacity of the tuber, and the sink strength of the sprout to support its accelerated growth.
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Affiliation(s)
- María N Muñiz García
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular 'Dr. Héctor Torres', Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Vuelta de Obligado, Buenos Aires, Argentina
| | - Juan I Cortelezzi
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular 'Dr. Héctor Torres', Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Vuelta de Obligado, Buenos Aires, Argentina
| | - Daniela A Capiati
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular 'Dr. Héctor Torres', Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Vuelta de Obligado, Buenos Aires, Argentina
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Yan Z, Yang MY, Zhao BG, Li G, Chao Q, Tian F, Gao G, Wang BC. OsAPL controls the nutrient transport systems in the leaf of rice (Oryza sativa L.). Planta 2022; 256:11. [PMID: 35699777 DOI: 10.1007/s00425-022-03913-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/08/2022] [Indexed: 06/15/2023]
Abstract
OsAPL positively controls the seedling growth and grain size in rice by targeting the plasma membrane H+-ATPase-encoding gene, OsRHA1, as well as drastically affects genes encoding H+-coupled secondary active transporters. Nutrient transport is a key component of both plant growth and environmental adaptation. Photosynthates and nutrients produced in the source organs (e.g., leaves) need to be transported to the sink organs (e.g., seeds). In rice, the unloading of nutrients occurs through apoplastic transport (i.e., across the membrane via transporters) and is dependent on the efficiency and number of transporters embedded in the cell membrane. However, the genetic mechanisms underlying the regulation of these transporters remain to be determined. Here we show that rice (Oryza sativa L., Kitaake) ALTERED PHLOEM DEVELOPMENT (OsAPL), homologous to a MYB family transcription factor promoting phloem development in Arabidopsis thaliana, regulates the number of transporters in rice. Overexpression of OsAPL leads to a 10% increase in grain yield at the heading stage. OsAPL acts as a transcriptional activator of OsRHA1, which encodes a subunit of the plasma membrane H+-ATPase (primary transporter). In addition, OsAPL strongly affects the expression of genes encoding H+-coupled secondary active transporters. Decreased expression of OsAPL leads to a decreased expression level of nutrient transporter genes. Taken together, our findings suggest the involvement of OsAPL in nutrients transport and crop yield accumulation in rice.
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Affiliation(s)
- Zhen Yan
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- College of Life Sciences, National Demonstration Center for Experimental Biology Education, Sichuan University, Chengdu, 610064, China
| | - Man-Yu Yang
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Biligen-Gaowa Zhao
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Guo Li
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qing Chao
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100039, China
| | - Feng Tian
- Peking-Tsinghua Center for Life Sciences (CLS), Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
- Beijing Advanced Innovation Center for Genomics (ICG) and Biomedical Pioneering Innovation Center (BIOPIC), Center for Bioinformatics (CBI), and State Key Laboratory of Protein and Plant Gene Research at School of Life Sciences, Peking University, Beijing, 100871, China
| | - Ge Gao
- Peking-Tsinghua Center for Life Sciences (CLS), Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
| | - Bai-Chen Wang
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100039, China.
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6
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Abstract
H+-ATPases, including the phosphorylated intermediate-type (P-type) and vacuolar-type (V-type) H+-ATPases, are important ATP-driven proton pumps that generate membrane potential and provide proton motive force for secondary active transport. P- and V-type H+-ATPases have distinct structures and subcellular localizations and play various roles in growth and stress responses. A P-type H+-ATPase is mainly regulated at the posttranslational level by phosphorylation and dephosphorylation of residues in its autoinhibitory C terminus. The expression and activity of both P- and V-type H+-ATPases are highly regulated by hormones and environmental cues. In this review, we summarize the recent advances in understanding of the evolution, regulation, and physiological roles of P- and V-type H+-ATPases, which coordinate and are involved in plant growth and stress adaptation. Understanding the different roles and the regulatory mechanisms of P- and V-type H+-ATPases provides a new perspective for improving plant growth and stress tolerance by modulating the activity of H+-ATPases, which will mitigate the increasing environmental stress conditions associated with ongoing global climate change.
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Affiliation(s)
- Ying Li
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, College of Agriculture, Yangzhou University, Yangzhou, China
| | - Houqing Zeng
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Feiyun Xu
- Center for Plant Water-Use and Nutrition Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, China;
| | - Feng Yan
- Institute of Agronomy and Plant Breeding, Justus Liebig University of Giessen, Giessen, Germany
| | - Weifeng Xu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, College of Agriculture, Yangzhou University, Yangzhou, China
- Center for Plant Water-Use and Nutrition Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, China;
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Jia L, Hao K, Suyala Q, Qin Y, Yu J, Liu K, Fan M. Potato tuber degradation is regulated by carbohydrate metabolism: Results of transcriptomic analysis. Plant Direct 2022; 6:e379. [PMID: 35059552 PMCID: PMC8758968 DOI: 10.1002/pld3.379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/08/2021] [Accepted: 12/15/2021] [Indexed: 05/13/2023]
Abstract
Tuber number is an essential factor determining yield and commodity in potato production. The initiation number has long been considered the sole determinant of the final total tuber number. In this study, we observed that tuber numbers at harvest were lower than at the tuber bulking stage; some formed tubers that were smaller than 3 cm degraded during development. Carbohydrate metabolism plays a crucial role in tuber degradation by coordinating the source-sink relationship. The contents of starch and sucrose, and the C:N ratio, are dramatically reduced in degradating tubers. Transcriptomic study showed that "carbohydrate metabolic processes" are Gene Ontology (GO) terms associated with tuber degradation. A polysaccharide degradation-related gene, LOC102601831, and a sugar transport gene, LOC102587850 (SWEET6a), are dramatically up-regulated in degradating tubers according to transcriptomic analysis, as validated by qRT-PCT. The terms "peptidase inhibitor activity" and "hydrolase activity" refer to the changes in molecular functions that degradating tubers exhibit. Nitrogen supplementation during potato development alleviates tuber degradation to a certain degree. This study provides novel insight into potato tuber development and possible management strategies for improving potato cultivation.
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Affiliation(s)
- Liguo Jia
- College of AgronomyInner Mongolia Agricultural UniversityHohhotChina
| | - Kai Hao
- College of AgronomyInner Mongolia Agricultural UniversityHohhotChina
| | - Qiqige Suyala
- College of Grassland and resource environmentInner Mongolia Agricultural UniversityHohhotChina
| | - Yonglin Qin
- College of AgronomyInner Mongolia Agricultural UniversityHohhotChina
| | - Jing Yu
- College of AgronomyInner Mongolia Agricultural UniversityHohhotChina
| | - Kun Liu
- College of AgronomyInner Mongolia Agricultural UniversityHohhotChina
| | - Mingshou Fan
- College of AgronomyInner Mongolia Agricultural UniversityHohhotChina
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8
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Zhou JY, Hao DL, Yang GZ. Regulation of Cytosolic pH: The Contributions of Plant Plasma Membrane H +-ATPases and Multiple Transporters. Int J Mol Sci 2021; 22:12998. [PMID: 34884802 PMCID: PMC8657649 DOI: 10.3390/ijms222312998] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 11/17/2022] Open
Abstract
Cytosolic pH homeostasis is a precondition for the normal growth and stress responses in plants, and H+ flux across the plasma membrane is essential for cytoplasmic pH control. Hence, this review focuses on seven types of proteins that possess direct H+ transport activity, namely, H+-ATPase, NHX, CHX, AMT, NRT, PHT, and KT/HAK/KUP, to summarize their plasma-membrane-located family members, the effect of corresponding gene knockout and/or overexpression on cytosolic pH, the H+ transport pathway, and their functional regulation by the extracellular/cytosolic pH. In general, H+-ATPases mediate H+ extrusion, whereas most members of other six proteins mediate H+ influx, thus contributing to cytosolic pH homeostasis by directly modulating H+ flux across the plasma membrane. The fact that some AMTs/NRTs mediate H+-coupled substrate influx, whereas other intra-family members facilitate H+-uncoupled substrate transport, demonstrates that not all plasma membrane transporters possess H+-coupled substrate transport mechanisms, and using the transport mechanism of a protein to represent the case of the entire family is not suitable. The transport activity of these proteins is regulated by extracellular and/or cytosolic pH, with different structural bases for H+ transfer among these seven types of proteins. Notably, intra-family members possess distinct pH regulatory characterization and underlying residues for H+ transfer. This review is anticipated to facilitate the understanding of the molecular basis for cytosolic pH homeostasis. Despite this progress, the strategy of their cooperation for cytosolic pH homeostasis needs further investigation.
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Affiliation(s)
- Jin-Yan Zhou
- Jiangsu Vocational College of Agriculture and Forest, Jurong 212400, China;
| | - Dong-Li Hao
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Guang-Zhe Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China;
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Ravari HH, Kavousi HR, Mohammadi F, Pourseyedi S. Partial cloning, characterization, and analysis of expression and activity of plasma membrane H +-ATPase in Kallar grass [Leptochloa fusca (L.) Kunth] under salt stress. Biol Futur 2021; 71:231-240. [PMID: 34554505 DOI: 10.1007/s42977-020-00019-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 05/15/2020] [Indexed: 11/26/2022]
Abstract
Kallar grass (Leptochloa fusca) is a highly salt-tolerant C4 perennial halophytic forage. The regulation of ion movement across the plasma membrane (PM) to improve salinity tolerance of plant is thought to be accomplished with the aid of the proton electrochemical gradient generated by PM H+-ATPase. In this study, we cloned a partial gene sequence of the Lf PM H+-ATPase and investigated its expression and activity under salt stress. The amino acid sequence of the isolated region of Lf PM H+-ATPase possesses the maximum identity up to 96% to its ortholog in Aeluropus littoralis. The isolated fragment of Lf PM H+-ATPase gene is a member of the subfamily Π of plant PM H+-ATPase and is most closely related to the Oryza sativa gene OSA7. The transcript level and activity of the PM H+-ATPase were increased in roots and shoots in response to NaCl and were peaked at 450 mM NaCl in both tissues. The induction of activity and gene expression of PM H+-ATPase in roots and shoots of Kallar grass under salinity indicate the necessity for this pump in these organs during salinity adaptation to establish and maintain the electrochemical gradient across the PM of the cells for adjusting ion homeostasis.
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Affiliation(s)
- Hadi Hamidi Ravari
- Department of Biotechnology, College of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Hamid Reza Kavousi
- Department of Biotechnology, College of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Fereshteh Mohammadi
- Department of Biotechnology, College of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Shahram Pourseyedi
- Department of Biotechnology, College of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
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10
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Flütsch S, Wang Y, Takemiya A, Vialet-Chabrand SRM, Klejchová M, Nigro A, Hills A, Lawson T, Blatt MR, Santelia D. Guard Cell Starch Degradation Yields Glucose for Rapid Stomatal Opening in Arabidopsis. Plant Cell 2020; 32:2325-2344. [PMID: 32354788 PMCID: PMC7346545 DOI: 10.1105/tpc.18.00802] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 03/25/2020] [Accepted: 04/23/2020] [Indexed: 05/18/2023]
Abstract
Starch in Arabidopsis (Arabidopsis thaliana) guard cells is rapidly degraded at the start of the day by the glucan hydrolases α-AMYLASE3 (AMY3) and β-AMYLASE1 (BAM1) to promote stomatal opening. This process is activated via phototropin-mediated blue light signaling downstream of the plasma membrane H+-ATPase. It remains unknown how guard cell starch degradation integrates with light-regulated membrane transport processes in the fine control of stomatal opening kinetics. We report that H+, K+, and Cl- transport across the guard cell plasma membrane is unaltered in the amy3 bam1 mutant, suggesting that starch degradation products do not directly affect the capacity to transport ions. Enzymatic quantification revealed that after 30 min of blue light illumination, amy3 bam1 guard cells had similar malate levels as the wild type, but had dramatically altered sugar homeostasis, with almost undetectable amounts of Glc. Thus, Glc, not malate, is the major starch-derived metabolite in Arabidopsis guard cells. We further show that impaired starch degradation in the amy3 bam1 mutant resulted in an increase in the time constant for opening of 40 min. We conclude that rapid starch degradation at dawn is required to maintain the cytoplasmic sugar pool, clearly needed for fast stomatal opening. The conversion and exchange of metabolites between subcellular compartments therefore coordinates the energetic and metabolic status of the cell with membrane ion transport.
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Affiliation(s)
- Sabrina Flütsch
- Institute of Integrative Biology, Eidgenössische Technische Hochschule (ETH) Zürich, CH-8092 Zürich, Switzerland
- Department of Plant and Microbial Biology, University of Zürich, CH-8008, Zürich, Switzerland
| | - Yizhou Wang
- Laboratory of Plant Physiology and Biophysics, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Atsushi Takemiya
- Department of Biology, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, 753-8512 Yamaguchi, Japan
| | | | - Martina Klejchová
- Laboratory of Plant Physiology and Biophysics, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Arianna Nigro
- Department of Plant and Microbial Biology, University of Zürich, CH-8008, Zürich, Switzerland
| | - Adrian Hills
- Laboratory of Plant Physiology and Biophysics, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Tracy Lawson
- School of Life Sciences, University of Essex, Colchester, CO4 3SQ, United Kingdom
| | - Michael R Blatt
- Laboratory of Plant Physiology and Biophysics, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Diana Santelia
- Institute of Integrative Biology, Eidgenössische Technische Hochschule (ETH) Zürich, CH-8092 Zürich, Switzerland
- Department of Plant and Microbial Biology, University of Zürich, CH-8008, Zürich, Switzerland
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Xu Z, Marowa P, Liu H, Du H, Zhang C, Li Y. Genome-Wide Identification and Analysis of P-Type Plasma Membrane H +-ATPase Sub-Gene Family in Sunflower and the Role of HHA4 and HHA11 in the Development of Salt Stress Resistance. Genes (Basel) 2020; 11:genes11040361. [PMID: 32230880 PMCID: PMC7231311 DOI: 10.3390/genes11040361] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 01/02/2023] Open
Abstract
The P-type plasma membrane (PM) H+-ATPase plays a major role during the growth and development of a plant. It is also involved in plant resistance to a variety of biotic and abiotic factors, including salt stress. The PM H+-ATPase gene family has been well characterized in Arabidopsis and other crop plants such as rice, cucumber, and potato; however, the same cannot be said in sunflower (Helianthus annuus). In this study, a total of thirteen PM H+-ATPase genes were screened from the recently released sunflower genome database with a comprehensive genome-wide analysis. According to a systematic phylogenetic classification with a previously reported species, the sunflower PM H+-ATPase genes (HHAs) were divided into four sub-clusters (I, II, IV, and V). In addition, systematic bioinformatics analyses such as gene structure analysis, chromosome location analysis, subcellular localization predication, conserved motifs, and Cis-acting elements of promoter identification were also done. Semi-quantitative PCR analysis data of HHAs in different sunflower tissues revealed the specificity of gene spatiotemporal expression and sub-cluster grouping. Those belonging to sub-cluster I and II exhibited wide expression in almost all of the tissues studied while sub-cluster IV and V seldom showed expression. In addition, the expression of HHA4, HHA11, and HHA13 was shown to be induced by salt stress. The transgenic plants overexpressing HHA4 and HHA11 showed higher salinity tolerance compared with wild-type plants. Further analysis showed that the Na+ content of transgenic Arabidopsis plants decreased under salt stress, which indicates that PM H+ ATPase participates in the physiological process of Na+ efflux, resulting in salt resistance of the plants. This study is the first to identify and analyze the sunflower PM H+ ATPase gene family. It does not only lay foundation for future research but also demonstrates the role played by HHAs in salt stress tolerance.
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Affiliation(s)
- Zongchang Xu
- Marine Agriculture Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China; (Z.X.); (C.Z.)
| | - Prince Marowa
- Crop Science Department, University of Zimbabwe, Harare 00263, Zimbabwe;
| | - Han Liu
- College of Agriculture, Qingdao Agricultural University, Qingdao 266109, China; (H.L.); (H.D.)
| | - Haina Du
- College of Agriculture, Qingdao Agricultural University, Qingdao 266109, China; (H.L.); (H.D.)
| | - Chengsheng Zhang
- Marine Agriculture Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China; (Z.X.); (C.Z.)
| | - Yiqiang Li
- Marine Agriculture Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China; (Z.X.); (C.Z.)
- Correspondence: ; Tel.: +86-0532-6671-5597
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López-González C, Juárez-Colunga S, Morales-Elías NC, Tiessen A. Exploring regulatory networks in plants: transcription factors of starch metabolism. PeerJ 2019; 7:e6841. [PMID: 31328026 PMCID: PMC6625501 DOI: 10.7717/peerj.6841] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 03/25/2019] [Indexed: 11/20/2022] Open
Abstract
Biological networks are complex (non-linear), redundant (cyclic) and compartmentalized at the subcellular level. Rational manipulation of plant metabolism may have failed due to inherent difficulties of a comprehensive understanding of regulatory loops. We first need to identify key factors controlling the regulatory loops of primary metabolism. The paradigms of plant networks are revised in order to highlight the differences between metabolic and transcriptional networks. Comparison between animal and plant transcription factors (TFs) reveal some important differences. Plant transcriptional networks function at a lower hierarchy compared to animal regulatory networks. Plant genomes contain more TFs than animal genomes, but plant proteins are smaller and have less domains as animal proteins which are often multifunctional. We briefly summarize mutant analysis and co-expression results pinpointing some TFs regulating starch enzymes in plants. Detailed information is provided about biochemical reactions, TFs and cis regulatory motifs involved in sucrose-starch metabolism, in both source and sink tissues. Examples about coordinated responses to hormones and environmental cues in different tissues and species are listed. Further advancements require combined data from single-cell transcriptomic and metabolomic approaches. Cell fractionation and subcellular inspection may provide valuable insights. We propose that shuffling of promoter elements might be a promising strategy to improve in the near future starch content, crop yield or food quality.
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Affiliation(s)
| | | | | | - Axel Tiessen
- Departamento de Ingeniería Genética, CINVESTAV Unidad Irapuato, Irapuato, México.,Laboratorio Nacional PlanTECC, Irapuato, México
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Muñiz García MN, Cortelezzi JI, Fumagalli M, Capiati DA. Expression of the Arabidopsis ABF4 gene in potato increases tuber yield, improves tuber quality and enhances salt and drought tolerance. Plant Mol Biol 2018; 98:137-152. [PMID: 30143991 DOI: 10.1007/s11103-018-0769-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 08/21/2018] [Indexed: 05/23/2023]
Abstract
In this study we show that expression of the Arabidopsis ABF4 gene in potato increases tuber yield under normal and abiotic stress conditions, improves storage capability and processing quality of the tubers, and enhances salt and drought tolerance. Potato is the third most important food crop in the world. Potato plants are susceptible to salinity and drought, which negatively affect crop yield, tuber quality and market value. The development of new varieties with higher yields and increased tolerance to adverse environmental conditions is a main objective in potato breeding. In addition, tubers suffer from undesirable sprouting during storage that leads to major quality losses; therefore, the control of tuber sprouting is of considerable economic importance. ABF (ABRE-binding factor) proteins are bZIP transcription factors that regulate abscisic acid signaling during abiotic stress. ABF proteins also play an important role in the tuberization induction. We developed transgenic potato plants constitutively expressing the Arabidopsis ABF4 gene (35S::ABF4). In this study, we evaluated the performance of 35S::ABF4 plants grown in soil, determining different parameters related to tuber yield, tuber quality (carbohydrates content and sprouting behavior) and tolerance to salt and drought stress. Besides enhancing salt stress and drought tolerance, constitutive expression of ABF4 increases tuber yield under normal and stress conditions, enhances storage capability and improves the processing quality of the tubers.
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Affiliation(s)
- María Noelia Muñiz García
- Institute of Genetic Engineering and Molecular Biology "Dr. Héctor Torres" (INGEBI), National Scientific and Technical Research Council (CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Juan Ignacio Cortelezzi
- Institute of Genetic Engineering and Molecular Biology "Dr. Héctor Torres" (INGEBI), National Scientific and Technical Research Council (CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Marina Fumagalli
- Institute of Genetic Engineering and Molecular Biology "Dr. Héctor Torres" (INGEBI), National Scientific and Technical Research Council (CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Daniela A Capiati
- Institute of Genetic Engineering and Molecular Biology "Dr. Héctor Torres" (INGEBI), National Scientific and Technical Research Council (CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina.
- Biochemistry Department, School of Exact and Natural Sciences, University of Buenos Aires, Buenos Aires, Argentina.
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